The cheapest route to Windows Phone platform, before committing yourself to something more expensive, Nokia's Lumia 520, will be added to AT&T's GoPhone stash on the 26th of July. The pre-paid mobile arm of AT&T will offer Lumia 520 for $100 off-contract, making it a $50 cheaper than T-Mobile's Lumia 521 offer, a variant with LTE support, which the Lumia 520 lacks, and won't be missed by customers at this price-point.

More details in the press-release below.

Beginning July 26, AT&T will offer customers even more choice with the launch of the Nokia Lumia 520, the first Windows Phone in the AT&T GoPhone portfolio. The 4G-capable Nokia Lumia 520 will be available for $99.99.

The Lumia 520 offers the intuitive functionality of the Windows Operating System and the outstanding imaging capabilities found on other smartphones in the Nokia Lumia family, all in a more affordable package. You can take great photos with the 5-megapixel camera and Nokia digital camera lenses, add motion to your pictures with Cinemagraph, or capture super-wide-angled pictures to take in more of the scene. In addition, you can use Smart Shoot to capture five sequential images and select different faces and portions of the photos to compile into one final group picture.

The super sensitive 4-inch IPS LCD WVGA display allows you to use the phone with fingernails or while wearing gloves.

AT&T GoPhone customers can enjoy the affordability and simplicity of no annual contract wireless plans on the nation's largest 4G network. AT&T 4G service is available with any GoPhone smartphone plans.

The Nokia Lumia 520 comes with access to free** global HERE Maps which provide information, photos and reviews on popular nearby places including directions or use HERE Drive to access turn-by-turn navigation, even when offline... To make getting around even easier, HERE Transit provides instant access to the best way across town using public transportation, offering a detailed overview of stations and stops, departure and arrival times, and estimations on your walking times.

Like our other Nokia smartphones, the Lumia 520 comes with Nokia Music that lets you stream unlimited music for free***. Tap into the latest tracks or create your own channels based on the artists you love. Accessing your favorite things is easy with this Windows Phone 8 smartphone. Customers can pin playlists, HERE routes, web pages and documents directly to the start screen as Live Tiles to get to your favorite content quickly. Select from various apps to be placed as Live Tiles and resize to reflect your personal priorities. Microsoft Office is built into your phone, and can seamlessly sync with laptops.